This year, I worked for an employer from April, 2025 to August, 2025. I had a fixed salary. I earned about 5 Lakh as salary. Later, I resigned and started working as a freelancer for software development, where I don't have a fixed salary, but I get paid on an hourly basis. I spent about 1 lakh for the initial set-up for the laptop, etc. I have earned about 5 lakh for the period of September 2025 to March 2026. I work from home whenever I have work assigned by my manager from the US. Which ITR file I have to use for the File Return? What is the maximum deduction I can show to reduce payable tax?